摘要
目的 检测怀化地区健康成年人腰椎骨密度的正常值范围，探讨其年龄、性别的变化规律，为防治骨质疏松提供参考。方法 怀化地区常驻居民160例，按年龄分为青年、中年、老年组，定量CT方法分别检测腰椎骨密度，组间检验方法分别比较不同性别各年龄组间、以及同一年龄组间不同性别间差异的显著性。结果 男性和女性腰椎骨密度值随年龄增高而下降，各组间差异均有高度显著性（P〈0．01）：老年组女性腰椎骨密度值较男性降低更为明显（P〈0．05）。结论 定量CT测量腰椎骨密度方法简单、安全、准确性较高，检测结果对有针对性的预防和治疗骨质疏松有重要参考价值。
Objective To detect the range of nol values of bone mineral density of the Lumbar Spine in norreal healthy adults in Huaihua District, to explore the variation rules of their age and gender changes , and prefer a reference to the prevention and cure of osteoporosis. Methods 160 cases of permanent residents in Huaihua District who were divided into young, middle - aged and old - age group were respectively detected bone mineral density of the Lumbar Spine by quantitative CT. Results The values of bone mineral density of the Lumbar Spine decreased in accordance with the increased age. There were significant difference between the groups （P 〈 0.01） ; a significant difference existed between different sexes in the old age group {p 〈0.05）, and values of bone mineral density of the Lumbar Spine in old women decreased more obviously than old men . Conclusion To detect the value of bone mineral density of the Lumbar Spine with the quantitative CT is simple, safe, highly accurate, and can be serval as an important reference to the prevention and treatment of osteoporosis
关键词
骨密度
腰椎
定量CT
健康成年人
Bone mineral density
lumbar spine
Quiantitative CT
healthy adult
